Mounting means for oscillatory display devices



Nov. 14, 1950 J. s. YARRow MOUNTING MEANS FoE oscILIAIoRY DISPLAY DEVICES Filed Dec. 3, 1948 INVENTOR Y JOSEPH S. YARROW A ORNEY Illini Patented Nov. 14, 1950 UNITED STATES PATENT OFFICE MOUNTING MEANS FOR OSCILLATORY DISPLAY DEVICES Claims.

This invention relates to display devices wherein a movable display panel is kept in motion with respect to a complementary stationary display and more particularly to means for mounting the motion members on the stationary panel.

One object is to provide a framework carrying the movable display and means for actuating same which may be readily attached to the stationary panel in a predetermined position and which may be readily detached for use with another display.

Another object is to provide means for attaching the framework which does not require the use of pockets or extra layers of material secured on the panels for the attachment of the motion members to the display panels.

Another object is to provide such a means of attachment which will hold the framework in fixed position and will not become loosened after lengthy periods of operation.

In the past detachable motor mountings for moving signs have worked loose during operation so that although the mounting does not become detached the mounting does work loose so that it is no longer in its original fixed position with respect to the stationary display and the liquid mercury switch is no longer in a position to insure self starting of the motor. Among the attempts to avoid these diiiiculties it has previously been proposed to mount the motor on a long tongue which may be tted into a pocket on the stationary display. These tongues while apparently satisfactory when first inserted in the pocket frequently become loosened in the pocket, and the mounting and tongue begin to oscillate or rock therein. The movement thus becomes cumulative as the pocket or tongue is worn and deformed by the movement. If the tongue can be initially set so tightly that, after changes due to variations in atmospheric conditions, no motion is possible the difculty would be obviated. This is not generally practicable since considerable force on the delicate parts would be required both in assembling and disassembling the sign.

To overcome these diihculties I utilize clips which may be engaged with the material of the display panel. These clips may be widely spaced so that the loosening force is slight.

These features are shown herein in connection with a display device which briefly described includes a stationary display panel provided with openings and a motor mounted framework secured to the rear face of the panel by means of clips passing through some of the openings and extending downwardly against the forward face of the panel. oscillatory means on the framework include similar clips, but inverted, for attaching a movable panel to said means.

In the accompanying drawing showing, by way of example one of many possible embodiments of the invention,

Fig. 1 is a rear view of the display device;

Fig. 2 is a vertical sectional view of the device taken substantially along the line 2-2 of Fig. 3 and looking in the direction of the arrows of said line;

Fig. 3 is a transverse sectional view of the device taken substantially along the line 3 3 of Fig. 1 and looking in the direction of the arrows of said line;

Fig. 4 is a perspective of the clip; and

Fig. 5 shows another form of use of the clip.

The display device comprises a stationary panel of heavy cardboard or other suitable material Ill having its front face suitable to carry the desired type of display or design. Said panel is provided with a large aperture II and with two small rectangular holes I2 each having a horizontal wall I3 and vertical side walls I3.

A framework generally designated I4 of such material as steel is secured to the rear face of the panel and comprises a pair of vertical strips I5 of stiff material, such as steel, having end portions I6 rearwardly bent perpendicular to the remainder of the strip. A ciip generally designated I'I, of steel or other suitable material having an outwardly open channel portionV I8 secured, as by a weld, to the front face of each strip I5, holds the respective strip disposed against the rear face of the'panel. The clip Il is provided with a tongue 2G integral with the channel portion I8 and perpendicular to the strip as at I9 where the tongue rests on the wall I3 of the hole I2 and vdeveloped downwardly to engage the front face of the lower marginal portion of the hole. The flanges of the channel portion engage tight against the side walls I3.

A horizontal tie-strip 2l is welded to the rear faces of the vertical strips I5 and carries a rearwardly projecting stub shaft 22. oscillatory means 23 passing through the aperture II are pivotally lmounted on the shaft 22 and include a plate 24 oscillatory in a plane parallel to the panel 3 between the coil and a source of current (not shown) controls the action of the solenoid.

Clips 3|, normally one below the other, mounted on the front face of the plate 2d are identical to those shown at Il except the tongues 20 are developed upwardly instead of downwardly as at 2li. The clips 3l engage a movable panel 32, shown for example in the shape of a bell, provided with rectangular holes 3d. Here too, the corresponding hole walls as well as the forward face of the panel are engaged by the clip as was described of clip Il. If the tongue 2li and the hole 311 are considered unsightly they may be covered over with, say, a piece of paper but this is not necessary for the strength of the fastening action. Usually the movable display 32 will be large enough to cover the holes l2 but if this should not be the case they too may be covered after assembly.

During assembly, the framework is manipulated or positioned until the plate 213 is passed through the aperture I I, which may be as large as desired so long as it remains covered by the movable panel and does not weaken the material near the clips I'I. The tongues 29 are lplaced in the holes I2 and the framework pushed downwardly until portion I9 rests on the wall I3.

Since the width of spacing of holes I2 may be made considerable and the clips may afford a snug fit there is no danger of the frame I4 becoming loose on the panel Il) after extensive and prolonged use. I-Ience the framework I4 remains Xed with respect to the stationary panel and if the switch 29 was accurately set for selfstarting of the oscillator and movable display it Will remain so.

The end portions I6 are provided as handles for positioning the framework and also for engagement in slots in corner mounting members of a shipping box so that the motion member as a whole may be held against movement within the container.

A locking strip 37 may be secured to the Ipanel I to partially cover the hole I 2 as shown in Fig. to lock the clip in place. be of any suitable material but if, say, cardboard is used the strip may be secured before the clip I'I is positioned. This is due to the fact that the metal clip I7 will cause the strip and panel III to be slightly iiexed and scratched when the clip l is forced into position, the fibers gripping the strip in somewhat the same manner as they would a driven nail, thus making the clip substantially non-removable. The trade frequently prefers that the mountings of the motion members on the panels be non-removable to prevent tampering by unauthorized :persons who are liable to destroy the adjustment necessary for satisfactory operation. The locking action may be enhanced by securing a layer of paper over the strip,. the clip and the marginal portions of the panel around the hole i2 which may also serve as a seal. Of course a similar locking strip may be provided for the clip 3 I.

The invention claimed is:

1. A display device comprising a stationary Vertical panel provided with rectangular holes having horizontal walls therethrough; motor means including a framework disposed against the rear face of the panel; clips each perma- 7 nently secured to said means and having a forwardly open channel portion with the flanges thereof disposed against the vertical walls of This strip may 4 each of said holes and having a tongue in engagement with the horizontal wall and the front marginal portion of the panel.

2. In a display device, a panel provided with spaced rectangular holes therethrough; mounting means disposed against a face of said panel; and a clip permanently secured to the mounting means and having a channel portion the flanges of which engage the side walls of one of the holes, and having a tongue over and against one of the other walls of the hole and extending along and against the opposite face of the panel.

3. In a display device as in claim 2 said panel being a substantially stationary display panel.

4. In a device as in claim 2 said means and panel being oscillatory.

5. In a display device, a vertical plate mounted for oscillation about a horizontal axis; a movable display panel disposed against said plate and provided with holes; a pair of clips permanently secured to said vplate each of said clips having an outwardly open channel portion provided with flanges normally in vertical planes and engaging walls of said holes and having a tongue passing through the respective hole and supporting the panel and extending upwardly in engagement with the outer lface of the panel.

6. A display device, comprising a vertical panel provided with rectangular holes therethrough; a motor framework disposed against the rear face of the panel and comprising two vertical steel strips having rearwardly bent end portions and fiat against said rear face and substantially covering said holes; clips each having a forwardly open channel portion the web of which is secured to one of the strips and the flanges engage vertical Walls of the hole, each clip having a tongue disposed on a horizontal wall of a hole and against the outer face of the panel adjacent the hole, and a horizontal tie member secured fast to each of the strips.

7. A device as in claim 6 and an oscillatory member mounted on the tie member and passing through the panel.

8. A device as in claim 7 and a movable display member in front of the panel and mounted on the oscillatory member.

9. A display device comprising a vertical :panel provided with spaced rectangular holes; motor mounting means disposed against a face of said panel; a clip permanently secured to the mounting means and having a channel portion the flanges of which project through the holes and engage the side walls thereof and said clip having a tongue over andagainst an end wall of each of the respective holes, and a locking strip secured to the panel engaging the anges at the end opposite the tongue.

10. A device as in claim 6 and a locking stri'p secured to the front face of the :panel and engaging the tops of the clips.

JOSEPH S. YARROW.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,247,938 Curtenius Nov. 27, 1917 1,569,278 Hickman Jan. 12, 1926 2,018,577 Ruckelshaus Oct. 22, 1935 

